AirTAC 4V230C-08AI Solenoid Valve, 5/3-way, closed center, PT1/4, AC220V, grommet entry (4V230C08AI)
The AirTAC AirTAC 4V230C-08AI Solenoid Valve, 5/3-way, closed center, PT1/4, AC220V, grommet entry (4V230C08AI) is a genuine 5/3-way 5/3 double solenoid — closed center solenoid valve with 230C08AI ports and an effective area of 13.6 mm² (Cv 0.8). It is an internally piloted spool valve that directs compressed air to double-acting cylinders and actuators.
- Valve type5/3-way
- Function5/3 double solenoid — Closed center
- Port size230C08AI
- Effective area13.6 mm²
- Flow (Cv)0.8
- Series4V200
About the AirTAC 4V230C-08AI Solenoid Valve, 5/3-way, closed center, PT1/4, AC220V, grommet entry (4V230C08AI)
The AirTAC 4V230C-08AI is a 5/3-way double-solenoid valve engineered to control double-acting cylinders with a critical mid-position hold. When both solenoids are de-energized, the closed center blocks all ports, trapping air to lock the actuator in place. This makes it the go-to choice for applications requiring an emergency stop or a stable pause without drift.
Pre-wired with a 0.5 m flying lead and DIN-style grommet, this AC220V model simplifies installation on machines where a terminal box is impractical. The 4V200 body delivers a Cv of 0.8 and effective area of 13.6 mm², ideal for cylinders in the ~Ø32-50 mm range. Its aluminum alloy body, IP65 protection, and sub-0.05 s response ensure reliable, clean performance.
AirTAC 4V230C-08AI Solenoid Valve, 5/3-way, closed center, PT1/4, AC220V, grommet entry (4V230C08AI) Technical Specifications
| Model | AirTAC 4V230C-08AI Solenoid Valve, 5/3-way, closed center, PT1/4, AC220V, grommet entry (4V230C08AI) |
|---|---|
| Series | 4V200 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Closed center |
| Port size | 230C08AI |
| Exhaust port | 230C08AI |
| Effective area (Cv) | 13.6 mm² (Cv 0.8) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Pilot type | Internal / external pilot |
| Operating pressure | 0.15 – 0.8 MPa |
| Proof pressure | 1.2 MPa |
| Max frequency | 3 cycle/sec |
| Response time | ≤ 0.05 s (activating) |
| Temperature | -20 to +70 °C |
| Body material | Aluminum alloy |
| Weight | 360 g |
Specifications follow the official AirTAC 4V series datasheet. Lubrication not required. Confirm coil voltage and thread (PT / NPT / G) against the product label before wiring.
Flow & Coil Options
| Effective area | 13.6 mm² |
|---|---|
| Flow coefficient | Cv 0.8 |
| Response time | ≤ 0.05 s |
| Coil power | AC 4.5 VA · DC24V 3.0 W · DC12V 2.5 W |
| Protection / insulation | IP65 (DIN40050), B-class |
| Voltage options | DC24V, DC12V, AC110V, AC220V |
| Manual override | Yes (locking / non-locking) |
Size the valve so effective area / Cv is not the bottleneck for your cylinder bore and speed. Undersized valves slow the actuator. Note 5/3 (center) versions have a smaller effective area than the 5/2 of the same body size.
Model Code: AirTAC 4V230C-08AI Solenoid Valve, 5/3-way, closed center, PT1/4, AC220V, grommet entry (4V230C08AI)
| 4V | Solenoid valve, spool type, 4-series. |
|---|---|
| 2 | Body size (4V200) — sets port & flow. |
| 3 | Function: 1 = single 5/2, 2 = double 5/2, 3 = 5/3. |
| -230C08AI | Port thread: M5 / 06=1/8" / 08=1/4" / 10=3/8" / 15=1/2". |
Related: 4V210 (single), 4V220 (double), 4V230C/E/P (5/3 center). Add the voltage suffix when ordering.
Where the AirTAC 4V230C-08AI Solenoid Valve, 5/3-way, closed center, PT1/4, AC220V, grommet entry (4V230C08AI) Is Used
Vertical Clamping
Holds a clamp cylinder at mid-stroke for a machining operation, preventing the tool from dropping if air pressure is interrupted.
Pallet Stop Gates
Controls a conveyor gate that must stay firmly in the closed position to prevent pallets from rolling through during an E-stop condition.
Material Hold-Down
Pauses a pressing cylinder at an intermediate point for a secondary process, ensuring the part remains securely in place.
Is the AirTAC 4V230C-08AI Solenoid Valve, 5/3-way, closed center, PT1/4, AC220V, grommet entry (4V230C08AI) the Right Valve?
Choose the 4V230C-08AI when your pneumatic circuit demands a safe, intermediate holding position for a double-acting cylinder. The closed center is perfect for vertical loads or processes where drifting is unacceptable during a power loss or controlled stop. If your cylinder is smaller (below Ø32 mm), the 4V100 series with its Cv of 0.6 may provide a more economical fit. For larger, faster cylinders above Ø50 mm, stepping up to the 4V300 series (Cv 1.65) is advisable.
When replacing an existing valve, match these five points: the 4V200 body size, the 5/3 closed-center function, the 1/4 inch PT ports, the AC220V coil voltage, and the grommet-style electrical entry. This exact combination ensures drop-in compatibility without modifying your wiring harness or sub-base.
Quick checklist
- ✓ Required flow (Cv) for cylinder & speed
- ✓ Function: single / double / 5-3 center
- ✓ Coil voltage (DC24 / AC220 …)
- ✓ Port thread (M5 / 1/8 / 1/4 / 3/8 / 1/2)
- ✓ Single valve or manifold base?
Installation & Wiring Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 0.8 MPa operating pressure.
- check Match coil voltage to your controller output.
- check Use the manual override to test before powering.
- check Fit silencers or fittings to the exhaust ports.
- check Wiring by qualified personnel per AirTAC docs.
AirTAC 4V230C-08AI Solenoid Valve, 5/3-way, closed center, PT1/4, AC220V, grommet entry (4V230C08AI) FAQ
In the center position, with both solenoids off, all ports are blocked. This traps compressed air on both sides of the cylinder piston, creating a holding force that resists movement, which is critical for stopping a load securely mid-cycle.
Yes, if your current setup uses a 4V200 series 5/3 closed-center valve with 1/4 inch ports and a 0.5 m flying lead for AC220V power. The grommet entry is a key identifier; a terminal box version would require a different wiring approach.
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